/* ============================================
   SL4M DESIGN SYSTEM — Y2K HOLOGRAPHIC
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=Orbitron:wght@400;500;600;700;800;900&family=Share+Tech+Mono&display=swap');

:root {
  /* Colors */
  --color-base: #0D0221;
  --color-base-light: #1a0a3e;
  --color-base-mid: #130330;
  --color-chrome: #C0C0C0;
  --color-chrome-light: #E8E8E8;
  --color-chrome-dark: #808080;
  --color-hot-pink: #FF2D7E;
  --color-electric-lime: #B9FF47;
  --color-cyan: #00FFFF;
  --color-baby-blue: #89CFF0;
  --color-terminal-green: #00FF41;
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-purple: #A855F7;
  --color-orange: #FF6B35;

  /* Gradients */
  --gradient-chrome: linear-gradient(135deg, #808080 0%, #C0C0C0 25%, #E8E8E8 50%, #C0C0C0 75%, #808080 100%);
  --gradient-holographic: linear-gradient(135deg, #FF2D7E, #00FFFF, #B9FF47, #89CFF0, #FF2D7E);
  --gradient-iridescent: linear-gradient(270deg, #FF2D7E, #B9FF47, #00FFFF, #89CFF0, #A855F7, #FF2D7E);
  --gradient-neon-pink: linear-gradient(135deg, #FF2D7E, #FF69B4);
  --gradient-dark: linear-gradient(180deg, #0D0221, #1a0a3e);
  --gradient-holo-bg: linear-gradient(135deg,
    rgba(255,45,126,0.15),
    rgba(0,255,255,0.15),
    rgba(185,255,71,0.15),
    rgba(137,207,240,0.15),
    rgba(255,45,126,0.15));

  /* Typography */
  --font-display: 'Press Start 2P', cursive;
  --font-sub-display: 'Orbitron', sans-serif;
  --font-body: 'Share Tech Mono', monospace;

  --text-xs: 0.625rem;
  --text-sm: 0.75rem;
  --text-base: 0.875rem;
  --text-lg: 1rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 3rem;
  --text-hero: clamp(3rem, 8vw, 8rem);

  --letter-spacing-wide: 0.2em;
  --letter-spacing-wider: 0.3em;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 8rem;
  --space-section: clamp(4rem, 10vh, 8rem);

  /* Effects */
  --glow-pink: 0 0 20px rgba(255, 45, 126, 0.5), 0 0 40px rgba(255, 45, 126, 0.3);
  --glow-cyan: 0 0 20px rgba(0, 255, 255, 0.5), 0 0 40px rgba(0, 255, 255, 0.3);
  --glow-lime: 0 0 20px rgba(185, 255, 71, 0.5), 0 0 40px rgba(185, 255, 71, 0.3);
  --glow-green: 0 0 10px rgba(0, 255, 65, 0.5);
  --glass-bg: rgba(13, 2, 33, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(10px);

  /* Animation */
  --duration-fast: 200ms;
  --duration-base: 400ms;
  --duration-slow: 800ms;
  --duration-glacial: 1500ms;
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ============================================
   RESET & BASE
   ============================================ */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  background: var(--color-base);
  color: var(--color-chrome-light);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-cyan);
  text-decoration: none;
  transition: color var(--duration-fast);
}

a:hover {
  color: var(--color-hot-pink);
}

img {
  max-width: 100%;
  display: block;
}

button {
  cursor: pointer;
  font-family: var(--font-body);
  border: none;
  background: none;
  color: inherit;
}

input {
  font-family: var(--font-body);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.section-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section-title {
  font-family: var(--font-sub-display);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  text-align: center;
  margin-bottom: var(--space-xl);
  background: var(--gradient-holographic);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
}

.section-label {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  color: var(--color-hot-pink);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  text-align: center;
  margin-bottom: var(--space-md);
}

/* ============================================
   KEYFRAME ANIMATIONS
   ============================================ */

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes holoBorder {
  0% { border-color: var(--color-hot-pink); }
  25% { border-color: var(--color-cyan); }
  50% { border-color: var(--color-electric-lime); }
  75% { border-color: var(--color-baby-blue); }
  100% { border-color: var(--color-hot-pink); }
}

@keyframes hueRotate {
  0% { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33% { transform: translateY(-10px) rotate(2deg); }
  66% { transform: translateY(5px) rotate(-1deg); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes twinkle {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes glitch {
  0%, 100% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(2px, -2px); }
  60% { transform: translate(-1px, -1px); }
  80% { transform: translate(1px, 1px); }
}

/* ============================================
   NEON BUTTON STYLES
   ============================================ */

.neon-btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-family: var(--font-display);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  border: 2px solid var(--color-cyan);
  color: var(--color-cyan);
  background: transparent;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-base) var(--ease-out);
}

.neon-btn:hover {
  color: var(--color-black);
  background: var(--color-cyan);
  box-shadow: var(--glow-cyan);
  transform: scale(1.05);
}

.neon-btn--pink {
  border-color: var(--color-hot-pink);
  color: var(--color-hot-pink);
}

.neon-btn--pink:hover {
  color: var(--color-white);
  background: var(--color-hot-pink);
  box-shadow: var(--glow-pink);
}

.neon-btn--lime {
  border-color: var(--color-electric-lime);
  color: var(--color-electric-lime);
}

.neon-btn--lime:hover {
  color: var(--color-black);
  background: var(--color-electric-lime);
  box-shadow: var(--glow-lime);
}

/* Holographic chip button */
.holo-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.6rem 1.2rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid;
  border-image: var(--gradient-holographic) 1;
  background: var(--glass-bg);
  color: var(--color-chrome-light);
  transition: all var(--duration-base);
  position: relative;
}

.holo-chip:hover {
  background: rgba(255, 45, 126, 0.2);
  box-shadow: var(--glow-pink);
  transform: translateY(-2px);
}

/* ============================================
   SCROLLBAR
   ============================================ */

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-base);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-holographic);
  border-radius: 4px;
}

/* Focus styles for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 3px;
}

.neon-btn:focus-visible {
  box-shadow: var(--glow-cyan);
  outline: 2px solid var(--color-cyan);
  outline-offset: 3px;
}

.holo-chip:focus-visible {
  box-shadow: var(--glow-pink);
  outline: 2px solid var(--color-hot-pink);
  outline-offset: 2px;
}

/* Skip to content link */
.skip-link {
  position: fixed;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  padding: 0.8rem 1.5rem;
  background: var(--color-hot-pink);
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: top var(--duration-fast);
}

.skip-link:focus {
  top: 1rem;
  color: var(--color-white);
}

::selection {
  background: var(--color-hot-pink);
  color: var(--color-white);
}